Why Is My Washing Machine Leaking? 8 Common Causes
Usually it's a loose or cracked hose, a clogged drain, too much detergent or a worn door seal. Find where the water comes from, then fix it.
If you’re wondering “why is my washing machine leaking?”, the fastest way to the answer is to find when and where the water appears. Leaks during filling usually come from the supply hoses; leaks during draining point to the drain hose or pump; puddles at the front of a front-loader almost always mean the door seal.
First, turn the machine off and unplug it before touching anything near water. Then dry the floor completely and run a short rinse cycle while you watch, so you can see exactly where the water starts.
1. Loose or cracked supply hoses (the most common washing machine leak)
The two hoses that bring hot and cold water to the back of the washer are under pressure all the time. If your washing machine is leaking from the back while it fills, a loose connection or a small crack is the usual culprit; it will drip during filling, and sometimes even when the machine is off.
Tighten the connections by hand plus a quarter turn with pliers. If a hose is bulging, cracked or more than five years old, replace both with braided stainless-steel hoses ($15–$30 a pair). A burst supply hose is one of the most common causes of water-damage insurance claims.
2. A clogged or damaged drain hose
The drain hose carries water out during the spin cycle. If it’s kinked, clogged with lint or cracked, water can back up and spill from the connection or the standpipe.
Check the hose for kinks behind the machine, and make sure it’s pushed only about 6–8 inches into the standpipe. Pushing it too far can siphon water out or cause overflow.
3. Too many suds can make a washing machine look like it’s leaking
Using regular detergent in a high-efficiency (HE) washer, or simply too much of it, creates excess suds. The foam can push water out through the door, the dispenser or the vents, and it looks exactly like a leak.
Use only detergent marked with the HE symbol in HE machines, and follow the dose line. If suds are the problem, run an empty rinse cycle with no detergent to clear them.
4. A worn door seal: why a front-loading washing machine is leaking
The rubber boot around the door of a front-loading washer is the most common source of leaks from the front. Coins, hair ties and lint can hold the seal open, and over time the rubber can tear.
Wipe the seal and look inside its folds for trapped objects or small tears. Cleaning it monthly also prevents mold. A replacement door boot costs $50–$150 as a part; installation takes about an hour with basic tools.
5. A clogged detergent dispenser
When fabric softener or powder hardens in the dispenser drawer, incoming water can overflow the drawer and run down the front of the machine.
Pull the drawer out (most have a release tab), soak it in hot water and clean the housing behind it with an old toothbrush.
6. A faulty drain pump makes the washing machine leak underneath
If water appears under the machine during the drain or spin cycle, the drain pump or its seals may be leaking. You may also hear grinding or humming when the pump runs.
Many front-loaders have a small access panel at the bottom front with a pump filter. Clean it first; a clogged filter strains the pump. If the pump housing is cracked, it needs replacing ($50–$120 for the part).
7. The tub seal or bearings are failing
Water leaking from underneath the center of the machine, combined with loud rumbling during the spin cycle, often means a worn tub seal and bearings.
This repair requires taking much of the washer apart. It often costs $300–$600 with labor, so on an older machine, compare the quote with the price of a new washer.
8. The washer isn’t level
An unlevel washer can shake enough to splash water out of the tub or loosen hoses over time. Place a level on top of the machine, front to back and side to side, and adjust the feet until it sits flat and doesn’t rock.
Quick reference: where the water comes from
| When it leaks | Where | Most likely cause |
|---|---|---|
| While filling | Back of the machine | Supply hoses or inlet valve |
| During drain or spin | Back or underneath | Drain hose, drain pump |
| Any time, front of a front-loader | Below the door | Door seal (boot) |
| During the wash | Front, near the drawer | Clogged dispenser or too many suds |
| Underneath, center | Under the tub | Tub seal and bearings |
When to call a professional
Call an appliance repair technician if the leak comes from inside the cabinet, the pump or the tub, or if you notice burning smells or tripped breakers. A service visit typically costs $100–$200 plus parts. If the machine is under a manufacturer’s warranty or a home warranty plan, check your coverage before paying out of pocket.
Also look under the flooring or in the room below after any big leak. Water that sits for more than a day or two can lead to mold and subfloor damage, which is often costlier than the washer repair itself.
FAQ
Why is my washing machine leaking from the bottom?
Leaks from the bottom usually come from the drain pump, a loose internal hose or a failing tub seal. Run a drain-only cycle and watch the pump area to narrow it down.
Why is my washing machine leaking only when draining?
That points to the drain hose, the standpipe connection or the drain pump. Check that the hose isn’t kinked and that the standpipe isn’t clogged.
Can I still use my washing machine if it’s leaking?
It’s best not to. Even small leaks can damage floors and electrical parts. Turn off the water valves until you find the cause.
How much does it cost to fix a leaking washing machine?
Hoses and seals cost $15–$150, pumps $50–$120 plus labor, and tub seal repairs $300–$600.
Bottom line
If your washing machine is leaking, watch a short cycle to see when and where the water appears. Hoses, detergent and the door seal cause most leaks and are easy to fix yourself. Leaks from the pump or tub call for a technician, and on an older washer the repair should be weighed against replacement.